TennisUPCOMING

Stale· updated 4m ago

ITF Amstetten: Anna Siskova vs Teodora Kostovic

Other · July 25, 2026

Best Price

$0.00

Worst Price

$0.00

Max Gap

0.0%

Total Volume

$0.0

Platform Prices — Anna Siskova

Platform	Decimal Odds	Implied %	Price▲	Edge vs Best	Action
KalshiBest	2.82	35.5%	$0.36	---	Bet Here
Polymarket	2.60	38.5%	$0.39	+3.0pp	Bet Here

KalshiBest

$0.36

Odds

2.82

Implied

35.5%

Edge

---

Bet Here

Polymarket

$0.39

Odds

2.60

Implied

38.5%

Edge

+3.0pp

Bet Here

All Outcomes

Anna Siskova

Best: 38.5% on polymarket

▲+3.0%

Prediction market is 3.0% cheaper than sportsbooks. Consider buying on PM.

38.5%

35.5%

Teodora Kostovic

Best: 61.5% on polymarket

▲+0.5%

Prediction market is 0.5% cheaper than sportsbooks. Consider buying on PM.

61.5%

61.0%

Aggregate liquidity

across every venue · the only place this number exists

For each outcome, the total fillable capacity if you split across every venue (Polymarket order-book depth + Kalshi order-book depth + Pinnacle / Bet365 / DraftKings stake limits). A whale can't deploy $50k on Polymarket alone without moving the price — but the same $50k splits cleanly across 4 venues at a much tighter aggregate fill price. That's what this panel shows.

Anna Siskova

cheapest single venue: kalshi at 0.355

Retail tier ($5k/venue)

$10.0K@ 0.575 avg

+26.12% vs cheapest single venue

kalshi$5.0K @ 0.456

polymarket$5.0K @ 0.695

What you can deploy retail-sized across every venue without moving a single market.

Sharp tier ($25k/venue)

$30.0K@ 0.771 avg

+10.94% vs cheapest single venue

polymarket$5.0K @ 0.695

kalshi

Arbitrage Opportunity

+3.63%theoretical onlyPAPER

Stake split for $1,000 bankroll

Anna Siskova (kalshi, $368) — slippage 5.0% — eats into edge

Outcome	Platform	Odds	Stake	To win
Anna Siskovathin	kalshi	2.82	$368	$1036
Teodora Kostovicthin	kalshi	1.64	$632	$1036

Stake the listed amount on each outcome at the matching platform. Whichever outcome wins, the payout covers the full bankroll plus the margin shown. Verify prices before placing — odds drift quickly.

Cross-Platform Edge — Anna Siskova

Spread

3.0pp

polymarket at 38.5% vs kalshi at 35.5%

Expected Value

+8.45%

Per $1 staked at kalshi (2.82) if polymarket's price is fair.

Kelly Stake

4.7%

Recommended bankroll fraction (capped at quarter Kelly).

Platform Activity

polymarket

updated just now

Volume: —
24h Volume: —
Liquidity: $1.9K
Open Interest: —

Resolves: in 7d 10h

Source: https://www.itftennis.com/en/tournament-calendar/

kalshi

updated just now

Volume: $13
24h Volume: $13
Liquidity: $0
Open Interest: $13

Resolves: in 14d 10h

Settlement Timeline

polymarketin 7d 10h · Aug 1, 2026, 9:30 AM
kalshiin 14d 10h · Aug 8, 2026, 9:30 AM

Capital on each platform stays locked until that market settles. When platforms resolve at different times the earlier one frees up bankroll for the next opportunity.

Price History

Illustrative preview · historical tracking coming soon

Trade This Market

Trade on Polymarket Trade on Kalshi

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